Interesting questions…
Taking into account the time frame/year in which WALL•E was manufactured, operated, and eventually abandoned to clean up Earth’s deposits, it’s conclusive that he was specifically built to withstand such catastrophes and basic environmental changes such as rain, wind, and, perhaps, even small bouts/shocks of lightning. Robots constructed by the Buy N’ Large corporation only advanced further and further over the years, as was demonstrated by EVE and other mechanisms we saw on the Axiom. WALL•E, although one of the earlier installments, was still built to last for an extended period of time, possibly because the humans realized where their planet was headed and made to create a durable, long-lasting robot to “clean up the mess”, as it were.
Shifting over to your questions…
1) My guess would be that the answer revolves either around extreme durability or “artist’s license/creative license”. The animators may have simply taken some liberties with the film so as to by-pass answering such questions as these. Either that, or WALL•E is more durable than we think he is.
As for the visibility of the star’s color: Well, I imagine it wouldn’t have looked as “cool” had they not colored it. Audiences appreciate that type of thing, I suppose. (snigger)
2) Again, I’m guessing that the artists took some liberties here. Like you said, though, the lightning bolt only lasted for a second, whereas [spoil]AUTO’s zap[/spoil] lasted longer. The fact that WALL•E was able to endure the latter electrical shock for as long as he did kind of surprised me, so perhaps he was built to withstand that sort of thing?
3) In the Buy N’ Large disclaimer, it states that WALL•E is not designed to function under water or in active water flows. By “under water”, I assume that they mean completely swallowed up by a vast body of it, as if one was to dunk WALL•E in the ocean or something. As for “active water flows”, that depends on how active they’re suggesting the flow to be. My take on the matter is that they’re referring to, say, a flash flood and not a simple rain shower. Even a downpour of rain (as was demonstrated in the film) didn’t seem to affect WALL•E (or maybe it did to a certain extent… and we just didn’t see it; perhaps he had to perform some procedure afterwards to rid himself of all that water, or maybe he was designed in such a way that “flaps” or “shutters” were installed on certain parts of his body so that they’d close to keep rain out, or maybe the rain just didn’t affect him at all).
We’ll have to ask Mr. Stanton all these questions in the future.
A very interesting point, lizardgirl. I never thought of that…
– Mitch